About RA Resident Advisor has been a home for electronic music culture since 2001. Event discovery, ticketing, news and long-form editorial, artist profiles, original films, and a weekly mix series two decades deep. Around 7 million people use the web platform every month, with a wider audience across our apps and other channels. Underneath the platform sits a network of contributors and city managers across dozens of cities, which is how we stay connected to the scenes we cover rather than reporting on them from a distance. You'll be a senior engineer on the RA Guide iOS app: shaping how it's built, leading the technical design of larger features, and raising the bar on quality with the Apps lead.
RA Guide is RA's app for browsing events and buying tickets, native on iOS and Android and used by thousands of people every day. You'll join the Apps team: the Apps lead (who also builds on iOS), an Android developer and a product manager, working closely with design and the web teams who build the APIs the app uses.
Native releases can't be rolled back once they're out, so we care about getting each one right: tests, careful review, and watching what happens after release.
Lead the technical design of larger features, including the specs that line up iOS and Android on the same APIs
Own areas of the codebase, and modernise older parts of it safely
Raise release quality: automated UI tests on native frameworks,



crash analysis and monitoring
Work with the web and platform teams on the APIs the app depends on
Help shape how the team uses AI in development, and where it shouldn't
Several years building and releasing iOS apps used at scale
Deep experience with Swift, app architecture and refactoring code that’s already live
Testing and coding habits for stable app releases
SwiftUI, reactive programming and GraphQL
A/B testing, phased rollouts and data tracking
Monitoring tools such as Datadog
Android or cross-platform experience
Company-led social events, team lunches, and discounts on merch
Paid annual volunteering allowance, encouraging contributions to community projects and charities you care about
Active involvement in community projects within the electronic music community (see:
25 years in, RA answers to the culture it came from rather than to outside stakeholders. Craft first, and then a genuine stake in this music rather than just a job in it.
RA has been B Corp certified since 2024, which holds us to standards on social and environmental impact we would want to meet regardless of the badge.
This role is a full-time based in our Madrid office. Please note: this position requires applicants to be based in Madrid and to work from the office three days per week.

📌 IOS Senior Engineer (Madrid)
🏢 Resident Advisor
📍 Madrid